🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.53 AU - 0.79 AU

Year: 188 Days

Day: 26.1 Hours

Environment

Temp: 216 °C

Axial Tilt: 22 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 87,547,757 km

• M1: 30,817 km (0.105 R)
• M2: 253,269 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.93 AU - 1.01 AU

Year: 334 Days

Day: 28 Hours

Environment

Temp: 88 °C

Axial Tilt: 32.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,547,757 km

• M1: 55,950 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.93 AU - 1.05 AU

Year: 345 Days

Day: 17.1 Hours

Environment

Temp: 137 °C

Axial Tilt: 37.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,547,757 km

• M1: 103,671 km (0.047 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.96 AU - 1.28 AU

Year: 415 Days

Day: 28.8 Hours

Environment

Temp: 49 °C

Axial Tilt: 15 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 87,547,757 km

• M1: 54,454 km (0.096 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.29 AU - 2.33 AU

Year: 1228 Days

Day: 38 Hours

Environment

Temp: -65 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.25 AU - 2.57 AU

Year: 1309 Days

Day: 13.6 Hours

Environment

Temp: -66 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.05 AU - 3.53 AU

Year: 2088 Days

Day: 38 Hours

Environment

Temp: -101 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.54 AU - 5.44 AU

Year: 3328 Days

Day: 21.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 142.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.15 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 11.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.3

Radius: 11.5

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 9.67 AU - 13.95 AU

Year: 14199 Days

Day: 11.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,547,757 km

• M1: 143,165 km (0.107 R)
• M2: 607,218 km (0.098 R)
• M3: 1,016,218 km (0.102 R)
• M4: 1,645,427 km (0.12 R)
• M5: 2,789,851 km (0.061 R)
• M6: 3,601,868 km (0.039 R)
• M7: 4,532,516 km (0.096 R)
• M8: 5,357,997 km (0.099 R)
• M9: 6,080,256 km (0.074 R)
• M10: 9,688,556 km (0.096 R)
• M11: 10,187,017 km (0.095 R)
• M12: 10,937,100 km (0.056 R)
• M13: 11,785,619 km (0.095 R)
• M14: 15,177,751 km (0.064 R)
• M15: 16,233,314 km (0.056 R)
• M16: 17,580,143 km (0.09 R)
• M17: 21,410,298 km (0.029 R)
• M18: 21,783,993 km (0.041 R)
• M19: 22,448,357 km (0.05 R)
• M20: 23,420,893 km (0.034 R)
• M21: 24,218,848 km (0.083 R)
• M22: 26,938,089 km (0.087 R)
• M23: 27,924,986 km (0.084 R)
• M24: 29,163,656 km (0.11 R)
• M25: 32,359,216 km (0.069 R)
• M26: 33,599,682 km (0.09 R)
• M27: 35,389,321 km (0.097 R)
• M28: 36,839,523 km (0.106 R)
• M29: 40,995,352 km (0.104 R)
• M30: 44,689,073 km (0.105 R)
• M31: 48,278,225 km (0.108 R)
• M32: 52,055,122 km (0.095 R)
• M33: 52,901,397 km (0.113 R)
• M34: 57,631,233 km (0.025 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.2

Radius: 7.7

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 14.26 AU - 18.9 AU

Year: 23619 Days

Day: 24.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,547,757 km

• M1: 96,191 km (0.101 R)
• M2: 474,524 km (0.103 R)
• M3: 940,821 km (0.096 R)
• M4: 1,545,795 km (0.119 R)
• M5: 1,954,496 km (0.043 R)
• M6: 2,206,569 km (0.085 R)
• M7: 2,675,857 km (0.113 R)
• M8: 3,097,873 km (0.109 R)
• M9: 3,472,615 km (0.11 R)
• M10: 4,313,505 km (0.089 R)
• M11: 4,781,597 km (0.092 R)
• M12: 5,819,507 km (0.048 R)
• M13: 6,437,047 km (0.115 R)
• M14: 8,279,195 km (0.106 R)
• M15: 10,258,973 km (0.117 R)
• M16: 15,371,630 km (0.118 R)
• M17: 19,751,108 km (0.074 R)
• M18: 22,593,617 km (0.101 R)
• M19: 27,111,024 km (0.076 R)
• M20: 28,081,615 km (0.097 R)
• M21: 30,349,668 km (0.119 R)
• M22: 32,601,266 km (0.118 R)
• M23: 36,402,398 km (0.092 R)
• M24: 38,182,762 km (0.115 R)
• M25: 39,865,140 km (0.054 R)
• M26: 42,723,656 km (0.106 R)
• M27: 46,916,435 km (0.109 R)
• M28: 50,280,592 km (0.094 R)
• M29: 53,612,885 km (0.051 R)
• M30: 56,109,075 km (0.088 R)
• M31: 58,681,710 km (0.106 R)
• M32: 67,529,526 km (0.07 R)
• M33: 69,309,890 km (0.087 R)
• M34: 71,349,956 km (0.119 R)
• M35: 79,172,579 km (0.083 R)
• M36: 79,418,218 km (0.102 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 13,989 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit